stone



4 Sheets-Sheet 1..

Patented Nov. 27, 1888.

H. STONE & W. H. PITT. 00m CONTROLLED WEIGHING MAGHINE.

(No Model.)

N. PETERS. Phumljlhcgnphcr. Washingmn. o. c.

W/TA/ES'SES:

(NqModeL) H. STONE 8a W. H.

PITT.

4 Sheets-Sheet 2.

ODIN CONTROLLED WEIGHING MACHINE.

Patented Nov. 2'7, 1-888.

gW/TNESSES:

mi: N

A fromv'n.

"(No Model.) 4 SheetsS11eet 3.

STONE &-. W. H. PITT. COIN CONTROLLED WE IGHING MACHINE.

No. 398,593. X Patented Nov. 2'7, 1888.

mun/70s,

% Afromm,

N. PETERS, Phnto-Lllhcgrzlphnr, Washington. D. C

(No Model.) 4 Sheets-Sheet 4.

'HQ'STONE & W. PITT. COIN GONTROLLED WBIGHING MACHINE.

No. 393,593. Patented Nov. 27, 1888.

' q vitmeooao vwemfoz J QMM 84 f m m 1;; abl'ozmu UNITED STATES PATENT Grains.

HENRY STONE AND \VALTER H. PITT, OF BROOKLYN, ASSlGNORS TO THE UNITED STATES \VEIGHING MACHINE COMPANY, OF NElV YORK, N. Y.

COlN-CONTROLLED WElGHlNG-MACHiNE.

SPECIFICATION forming part of Letters Patent No. 393,593, dated November 27, 1888.

Application filed May 10, 1888.

T [tZZ whom it may concern.-

Be it known that we, HENRY STONE and \VALTER H. PITT, citizens of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented a new and useful Ooin Controlled \Veighing- Machine, of which the followingis aspecification.

Our invention relates to an improvement in weighing-machines operated by a coin dropped [0 into a chute; and the objects of our invention are, first, to provide such a machine as may be operated by a coin of any denomination that will fit the chute; second, to provide such a machine as will be operated by the coin I5 whether the person desiring to be weighed steps upon the weighing-platform either before or after dropping the coin into the chute; third, to provide such a machine as shall be self-winding; fourth, to provide such a ma 2c chine as will not be liable to get out of order through sudden jerks and rough usage. \Ve attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a face or frontview of our weighing-machine with part of the dial removed and without the weighing-platform. Fig. 2 is a vertical section of the weighingmachine without the case and dial and also without the weighing-platform. Fig. 3 is a horizontal view of the machine on the line 3 3. Fig. 4 is a detail face view of the two revolving disks L and M. Fig. 5 is a sectional view of the same horizontally on the line 5 5. Fig. 6 is a detail view of a portion of the pawl I l and the rod J. Fig. 7 is a detail view ofthe same horizontally. Fig. 8 is a detail view of the shouldered bearing V, shaft T, indicating hand U, stop-bar V, stop-pin o, antifriction Wheelsff, and cordff.

The same letters refer to the same or like parts throughout.

The weighing-machine has a suitable case, A, provided with a suitable dial, A, a squaresided chute, F F, a face or bed plate, D, supported upon the case, and is provided with an upright T-shaped bar, 13, connectingat the bottom with the weighing-lever of a suitable scale and at the top with two spiral springs, 50 O (7, Figs. 1 and 2, securely hung upon an ad- Serial No.273,4l-2. (No model.)

justable cross-piece, O 0, held in place by the screws 0 O, the said springs O 0 being of sufficient strength to superbalance the weight of the bar 13 and its connections and prevent its dropping by the force of gravity when no weight is on the platform of the scales. The bar B passes behind the face-plate D. Upon the faceplate D is a narrower bar, E, sliding vertically between suitable bearings, e 0, connected at its upper end with the piston-rod d of a piston working in a cylinder, D, and ter minating at its lower end in a small wheel, 6', resting upon a flat metal strip, 1), which will be hereinafter more fully described. The cylinder D is fixed to the face-plate D.

Upon the face of the bar E and above the middle are two wheels, f f, and at one side, fixed at the point 9, is a bow-spring, g g. Fastened to each end of the springgg and passing over each of the wheels ff is a cord, ff, the intention of the wheels ff being to lessen the friction of the cord f f. About the middle of the barE and on one of its sides is a ratchet, a.

Fixed upon the upper portion of the faceplate D is a shouldered bearing, V, (see Fig. 8,) through which at its lower end passes the shaft T of an indicating-hand, U. Attached to the indicator-shaft T and turning with it is a stop-bar, V, which when in normal posi tion rests against a small stop-pin, e, Figg 1 and 8.

The dotted lines V in Fig. 2 represent the stop bar both in normal position and carried around with theindicatinghand U. The cord f f before mentioned is passed around theindicator-shaft T, the bight or bights of the cord being passed through the shaft Tto prevent slipping.

Pivoted upon the faceplate D at the point i is a pawl, 1 1, with a counter-weight, I, this pawl engaging with the ratchet e. Attached to the pawl 1 I is a rod, J, working at one end with a slot, 2", over a pin, 2', projecting from the pawl l I, and having a small spring, 2', upon its upper side, one end of this spring being caught under the pin z", Figs. 1, 2, 6, and 7. The rod J terminates at its other end in a rounded hook, j, which fits rounded in-. eisions or cuttings in the disk L.

In the chute F, which is square-sided, piv' oted at the pointf, is a lever-pan, F, having a counterweight, G. Wit-h one end resting upon thelever-pan F" is a lever, G (.r, pivoted upon a cross-bar, V, at the point H, and the other end terminating in a hook, in, which projects forward and rests upon a second lever, K, Figs. 2 and 3. This lever K is pivoted in a movement, S, upon a shaft, It, is weighted at the point k, and at this end rests upon the fly-wheel of a fly-fan, kl.:.

Upon the upper edge of the lever K is a tooth or projection, m, which fits incisions or cuttings min the rim of the disk M. Firmly fixed to and revolving with the shaft T of the movement S is a heavy disk, L, having on its rim at regular intervals semicircular cuttings or incisions n a, with their points rounded off, Figs. 2, t, and 5. The rear side of the disk L is recessed to admit the introduction ofa small coil-spring, it. Through the disk is cut a slot, at. Revolving upon the shaft T is a second and much thinner disk, M, having upon its rim rectangular incisions or cuttings m m, Figs. 2, 4, and 5, and upon its front faeeapin, it, working in the slot it of the disk L. The circles shown upon this disk M in Fig. 1 are merely cuttings to lessen the weight, and do not relate to the mechanism. The small spring I, recessed into the disk .L, is fastened at one end to the shaft T and at the other end to the pin a, Figs. and 5.

Upon the movement S, pivoted at thepoint r, is a lever, It, having at one end a pawl, Q, pivoted at q,which its a winding ratch-wheel, 1, of the movement S, the said wheel I? being rigidly fixed on the shaft N, this pawl Q being held against the wheel 1 by a small spring, 1. The lever It passes behind the bar B and rests upon a pin, 1*, (shown in outline, Fig. 2,) projecting from the rear side of the bar B. Upon the opposite side of the winding-wheel 1 is a retaining-pawl, Q. Revolving upon a winding-shaft, N, is a barrel, 0, which has within it the driving-spring n a'of the movement S, one end, a, of which spring n a is fastened to the shaft N, and the other end, a, merely rests against the inner periphery of the barrel 0.

At the lower part of the bar 13 is fixed a heavy metal stop-plate, B, with ashonlder, b. Upon the shoulder b, pivoted at b, is a Hat strip of metal, 1), weighted at the end I), and with its other end resting against a cushion, If, of rubber-or other suitable materiah The cross-piece WV is fastened and held in place by screws or rivets on the outside of the case of the movement S, Fig. 1. The fly-fan k" k is an ordinary fly wheel and fan, such as is commonly used to regulateclock-movements.

The portions of the movement S not lettered or described are merely a train of gear-wheels to prevent the movement from running down too quickly.

Upon the bar 13, at nearly its lowest point and on its rear side, is a stop-pin, B, Fig, 1,

which when the bar 13 is in its normal position will rest against a cushion, B, fixed to the case A, the intention being to prevent any undue pressure on the cushion or buffer b" and the end of the sliding bar E in case of ill use of the machine by sudden jumps upon the weighingplatform and the rebound when a person leaves the platform.

The action of the weighing machine is as follows: The coin falling upon the lever-pan F causes it to turn upon its pivotf and lift the end of the lever G G. The hook to being pressed downward upon the lever K lifts the weighted end It thereof off the fly-wheel of the fly-fan ifk, and at the same time releases the tooth or projection m of the lever K from the incision m of the disk M and allows the movement S to commence running. The disk M commences to turn slightly before the disk L, owing to the accelerating action of the small spring L,- but this accelerating motion continues only while the pin it travels the length of the slot a, and the intention of it is to prevent the possibility of the projection or tooth in of the lever K from falling back into the cutting in that it has just left. The disk M then, being slightly in advance of the disk L, is brought back to its original position with the disk L by the friction of the projection in of the lever K upon the rim of the disk M, Fig. 4, this friction being sufficient to overcome the power of the small spring 16 and yet not sufiicient to stop the action of the entire movement S. ft is necestary for the disk llf to be brought back to its original position with the disk L, as otherwise, the pin it being at the end of the slota, it would be impossible for the accelerated motion of the disk M to be repeated when the next person is to be weighed.

The rounded hook j on the rod J, being in place in a rounded incision, a, in the disk L,

will be drawn in the direction that the disk L moves, carrying with it the pawl I I. This releases the sliding bar E. The person desiring to be weighed steps or has stepped upon the weighing-platform, causing the bar B to be drawn downward, the stop-plate and shoulder B Z) being drawn with it. The sliding bar E falls of its own momentum,

being prevented from. acting too rapidly by the dash-pot D d, this movement of the bar E causing, by means of the spring 9 g, the wheels f f, and'the cord f f, the indicator-shaft T to turn with the indicating-hand U, showing upon the dial A the weight of the person being weighed. In case a sudden jerk should cause the indicatinghand to go beyond the proper weight, it is brought back by the spring 9 g exerting an equal tension on each end of the cord f f. Through the action of the movement S the disk L turns from right to left, and the hook j of the rod J, being inserted in a cutting, n, is drawn in the direction L moves as far as the pawl 1 I, turning upon its pivot i,will allow it to go. The continued movement of the disk L causes the hook j to be drawn out of slight play, allow the ratchet e to continue on its upward course, Figs. 6 and 7.

The projectionm of the lever K is again inserted in one of the cuttings m of the disk M. The weighted end 70 falls back upon the wheel of the fly-fan 7c 70 and the movement S is stopped. The person weighed steps off the platform, the bar B returns to its original position, carrying with it the sliding bar E, through the pressure of the stop-plate B b, and the indicating-hand returns upward to zero, being prevented from going too far in case of sudden jerk by the stop-piece and pin V o.

lVhen the weighing-machine is first put together, the spring a a of the movement S is wound sufficiently to start the mechanism. The subsequent winding is as follows: The weight of the person draws down the bar B and causes the lever B, which rests upon the pin 7', to drop. The pawl Q then glides over the ratchet of the winding-wheelP. On the return of the bar B the pin r lifts the lever It npward,which carries the pawl Q downward, and this pawl, being pressed against the ratchet of the wheel I by the spring 1-, takes the wheel I around with it. 'Whcn the pawl Q, is released, the wheel is prevented from returning to its former position by the second pawl, Q, so winding the spring a a" in the barrel 0, the winding-wheel 1? being loosely mounted 011 the shaft N, the wheel and barrel turning on the shaft N, but not with it, the shaft only turning when the winding takes place. As continued winding would break the spring a a if it were fastened at both ends a a", it is not fastened at the point a, but merely rests against the inner side of the barrel 0, the friction of the spring on the inner side ofthe barrel holding it sufficiently to wind it to drive the movement. Thus any extra winding force exerted on the spring does not cause it to break, but merely to revolve in the barrel.

As the bar B in returning to its normal positionhas to exert some of its force in windingthe machine, the tendency is not to push the sliding bar E fully back to its normal position-that is, the indicating-hand fully back to the zero-point. To obviate this a flat strip of metal, I), is pivoted upon the shoulder b at b and weighted at I), one end of which comes into contact with a cushion or buffer, I), of rubber or suitable material. This contact causes the end I) to press upward against the end of the sliding bar E, carrying it back to its original position, Fig. 1. The wheel a is to lessen friction and provide for any slight lateral motion of the bar E in its bearings.

The weight 1) causes the strip 7) to fall back in place on the shoulder I).

Having fully described our invention, what we desire to claim and secure by Letters Patent is l. The combination, in a coin-controlled weighing-machine, with platform, index, and a connection between them, of the cylinder and piston D (Z, the sliding bar E, the anti friction wheels ff and e, the ratchet e, the bow-spring g g, the shaft T, and the cordff. passing in bights around and through the shaft T, substantially as set forth.

2. The combination, in a weighing-machine, with a platform connected with a weighinglever, of the sliding bar B, connected with said lever so as to slide in consonance therewith, and being superbalanced by springs and carrying a stop, the bar E, having ratchet c, and resting on said stop when its action is free or on a cushion thereon, but otherwise disconnected with bar B, the index U, with its con nections with bar E, as described, so that its movement is regulated by the rise and fall of said bar, the tumbler-lever F for receiving the coin, the pawl I I, the motor S, and con nections, substantially as herein described, be tween said tumbler-lever and the said pawl, whereby the weight of the coin is made to dis engage the pawl I I from the ratchet c, as herein set forth.

The combination, in a weighing-machine controlled by a coin, of the tumbler-lever F, the motor S, and the pawl I I,with their connections through the motor, the free sliding bar 1*], having ratchet to engage said pawl and connected with index U, described, and bar B, sliding in consonancc with the platform weighing-lever, and having a stop which controls the free movement of rod E, as herein set forth.

4'. The combination, in a weighirig-machine, of a sliding bar, E, connected, as herein de scribed, with an index, and whose movement is controlled by a stop upon bar B, connected, as herein described, with the platform, the metal strip Z), pivoted to said stop and having thereon the weight b at one end, and the other end resting against a cushion, Z), the cushion b",the bar E, controlling the index, and bar B, connected with the platform, as herein set forth.

5. In a weighing-machine, the combination of the tumbler-lever F, hooked lever-bar G G w,weighted releasing-barK Lm,the notched or incised disks L a M in, the movement or motor S, rod Jj, pawl I l, and ratchet c, as described.

6. The combination of the disk L, having incisions n M13116 disk M,having incisions m m, the lever K, provided with tooth nz ,the rod Jj, pawl I 1, motor S, bar G G, and tumbler-lever F and bar B, with platform and its connections thereto, as described.

7. The combination, inaweighingmachine, with the platform and ratchet c, and connections between them, as described, of the disk weighing-machine, with the bar B, of the L n, coil-spring t, pin u, and disk M m,'having shouldered stop-plate B b, the pivoted and slot u, lever K, and lever J, as described. weighted horizontal strip 1) b, and the buffer 8. The combination, inaweighing-machine, or cushion b, and the bar E, connected with a. with the platform and ratchet e, and conneedial, substantially as set forth. tions between them, as described, and motor S, of the rod R R, driving pawl Q, ratchet wheel P, retaining-pawl Q, bar 13, and stop o as described.

9. The combination, in a. coin-controlled HENRY STONE. WALTER H. PITT. Witnesses:

JAMES M. BALL, CHARLES HERVEY JACKSON. 

